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Get PriceThe Bond Abrasion Test determines the Abrasion Index which is used to determine steel media and liner wear in crushers rod mills and ball mills. Bond developed the following correlations based on the wear rate in pounds of metal wearkWh of energy used in the comminution process.
The Bond Abrasion Test determines the Abrasion Index which is used to determine steel media and liner wear in crushers rod mills and ball mills. Bond developed the following correlations based on the wear rate in pounds of metal wearkWh of energy used in the comminution process.
Get PriceFor the circuit design a Bo nd ball mill work index of 18.1kWh t was used with design contingency to increase to a maximum of 19.1kWht. Design comminution data is summarised in Table 4.
Get PriceComparison of UCS to Bond Work Indices. FIGURE 8 ROD MILLBALL MILL WORK INDEX RATIO v. UNCONFINED COMPRESSIVE STRENGTH 100 200 300 400 UCS MPa 0 0.5 1 1.5 2 WiRMWiBM metric Siddall et al 1996 identified the ratio of Bond rod mill Work Index and ball mill Work Index as being indicative of an ores compentency.
Get PriceThe Bond work index determination according to the standard Bonds test is done on all these samples with compara-tive sieve size of 74 105 and 150 microns. The Bond Work Index is calculated using the formula Bond 1961 1 where W i Bond work index kWht P c test sieve mesh size m G weight of the test sieve .
Get Pricein terms of SAG power index SPI for SAG grinding and Bond Ball mill work index BWi for ball mill grinding. A further measure the Minnovex crusher index Ci was also measured for use in the CEET program to determine SAG mill feed size Kosick and Bennett 2001. The SPI values varied from 13.5 to 107 minutes with an average of 53 minutes.
Get PriceEF5BM P8010.3 1.145 P80 3 The EF4 formula requires both the rod mill and ball mill work index rod mill Wi is used to calculate the optimal feed size and because this is a single-stage ball mill calculation the F80 is actually the rod mill feed size 10000 m from Table 1 and the P80 is the ball mill circuit product. The EF5 factor only applies below 75 m to ball.
Get PriceIn the case of ball mills this is certainly not straightforward. Let s consider a simple example the most common tumbling mill test used in the lab is the Bond ball mill grindability test used for nearly 70 years to determine the Bond work index which is a number used to estimate how hard it will be to grind the material of interest.
Get PriceThe Vibrocone has a similar design to that of a cone crusher with a mantle acting against a concavebowl liner. However it has an unbalanced-weight . mills can be replaced by Vibrocones. . Bonds ball-milling work index was also observed suggesting that less energy is.
Get PriceJul 31 2014 Mill power draw prediction can be carried out using Morrells power model for tumbling mills Morrell 1998. Bond method The established technique for determining power requirements for ball mills is the Bond method Bond 1961. This method also involves the application of some efficiency factors as described by Rowland 1975.
Get PriceWe are good quality Ball Mill Liners DF009 Mill Liner Design And Installation With HRC50-55 Hardness manufacturers amp exporter - buy Mill Liner Design and Installation . Learn More bonds work index ball mill inner liners design - Grinding .
Get Pricepublished his method of energy calculation with an index called Bond work index Bond 1961. In the 1970s the population balance or selection and breakage function model was at the forefront of research Fuerstenau et al. 1973. A number of advancements were made in the application of this model to ball mill.
Get PriceThough it was altered in succeeding years it has essentially remained unchanged since 1961 1.To calculate the Bond work index W i in a standard laboratory scale rod-mill Bond derived the following equationW i 62 P 023 i G 0625 i 10 ffiffi P p 10 ffiffi F p h i kw h sh t 1 where F is 80 passing size of original feed P is 80 .
Get PriceThe mill product can either be finished size ready for processing or an intermediate size ready for final grinding in a rod mill ball mill or pebble mill. AGSAG mills can accomplish the same size reduction work as two or three stages of crushing and screening a rod mill and some or all of the work of a ball mill.
Get PriceThe Bond Ball Mill Work Index BBWi test is carried out in a standardised ball mill with a pre-defined media and ore charge. The Work Index calculated from the testing can be used in the design and analysis of ball mill circuits The test requires a minimum of 10kg of sample that has been stage-crushed to 100 passing size of 3.35 mm.
Get PriceBond S Work Index Ball Mill Inner Liners Design. Ball mill designpower calculation linkedin.Operating parameters of ball mill dec 12 2016 the basic parameters used in ball mill design power calculations rod mill or any tumbling mill sizing are material to be ground characteristics bond work index get price.
Get PriceBonds Work Index Ball Mill Manufactuering Design And Bonds. Milling Equipment bonds work index ball mill manufactuering design and bonds - A class of machinery and equipment that can be used to meet the production requirements of coarse grinding fine grinding and super fine grinding in the field of industrial grinding.The finished product can be controlled freely from 0 to 3000 mesh.
Get PriceA Total Apparent Volumetric Charge Filling including balls and excess slurry on top of the ball charge plus the interstitial voids in between the balls expressed as a percentage of the net internal mill volume inside liners. B Overflow Discharge Mills operating at low ball fillings slurry may accumulate on top of the ball charge causing the Total Charge Filling Level to .
Get PriceJan 15 2018 The Bond Ball Mill Work index BBWi is the industry standard procedure for assessing the grindability of ores. The test involves conducting a locked-cycle grinding test using Bonds standard mill design. The locked-cycle test enables a batch process to emulate the grinding behaviour of a continuous mill with a 250 recirculating load.
Get Pricepuritic ore calculated Bond work index is higher with different circulating loads the Bond work index is higher with lower circulating loads. The purpose of this study to determine the effects of circulating load CL and test sieve size P on the Bond ball mill grindability Ght and work index W with natural amorphous silica.
Get PriceWe are good quality Ball Mill Liners DF009 Mill Liner Design And Installation With HRC50-55 Hardness manufacturers amp exporter - buy Mill Liner Design and Installation . Learn More bonds work index ball mill inner liners design - Grinding .
Get Pricepublished his method of energy calculation with an index called Bond work index Bond 1961. In the 1970s the population balance or selection and breakage function model was at the forefront of research Fuerstenau et al. 1973. A number of advancements were made in the application of this model to ball mill.
Get PriceK A constant 350 for wet overflow mills etc. WI Bond test Work Index kWhshort ton. SG Ore specific gravity. Cs Mill speed in percent of critical. ID Mill inside liners working diameter feet. It pre-dated semi-autogenous grinding and needs to be adjusted for those applications. Other guides e.g. Azzaroni.
Get PriceDec 17 2018 The Work Index is calculated as Wi 1622 HGI1.08 Wi 88 HGI0.5 13.8 kWh Ton proposed by Bond in 1951 Wi 1622 HGI1.08 byMcintyre and Plitt in 1980 for Wi 8.5 Mill Power Draw Determination N Using desired product rate and expected specific power consumption figure from the grindability testing the net power requirement delivered by the ball mill is determined.
Get PriceBall Mill power kW 40596 39318 40006 Pebbles power kW 806 806 868 Pso liD 181 186 193 EsAC 5.72 5.53 5.22 Eaalls 10.17 9.51 8.97 Aminpro Aminpros method is based on SPI and Bond work index scale-up methods as described elsewhere Amelunxen amp Meadows 2011. The approach is based on the use of industrial plant audit data and.
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